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Finding the Fourth Proportional to 73,182.60, 100,986.75 and 42,969.24

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Solution

The fourth proportional to 73,182.60, 100,986.75 and 42,969.24 is: 59,294.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,182.60 : 100,986.75 = 42,969.24 : x
  2. Step 2: Convert to fraction form
    73,182.60/100,986.75 = 42,969.24/x
  3. Step 3: Cross multiply
    73,182.60x = 100,986.75 × 42,969.24
  4. Step 4: Simplify right side
    73,182.60x = 4,339,323,897.57
  5. Step 5: Solve for x
    x = 4,339,323,897.57/73,182.60
  6. Step 6: Final answer
    x = 59,294.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.